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흡수제를 이용한 HCl 저감 기술 연구 KCI 등재

A Study of Hydrogen Chloride Removing by Sorbents in Gas Phase

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한국폐기물자원순환학회지 (Journal of Korea Society of Waste Management)
한국폐기물자원순환학회 (Korea Society Of Waste Management)
초록

In this study, the experiments which use the dry absorbent has been executed in order to find optimum HCl absorptionconditions. The absorbents in this experiment were Ca(OH)2-A, Ca(OH)2-B and CaO. They were put in a fixed-bed reactor.The reaction temperature of HCl/Ca(OH)2 systems were between 200~400oC and those of HCl/CaO systems werebetween at 500~700oC. The reaction gases were HCl and N2 mixtures (3000ppm). The reaction gas of 2L·min−1 wasfed into the reactor. As temperature increased, the conversion ratio of HCl in Ca(OH)2 particles also increased.Consequently, Ca(OH)2-B showed the maximum conversion ratio of 19% at 400oC. CaO also showed the similar tendencywith the result of Ca(OH)2. In case of same particle sizes, as reaction temperature increased, the reaction rate constant(k) also increased. The highest reaction rate constant of Ca(OH)2-B was 3,952min−1 at 400oC. All absorbents in thisexperiment showed that the reaction rate decreased with increasing the size of the particles at each temperature condition.The kinetics of the reaction between sorbents and HCl molecules showed that the activation energies were about 2.71~6.85kcal·mol−1 (averager 4.53kcal·mol−1) for Ca(OH)2-A, about 1.3011.51kcal·mol−1 (average 6.10kcal·mol−1) forCa(OH)2-B, and about 2.5314.3kcal·mol−1 (average 6.91kcal·mol−1) for CaO depending on conversion ratios.

저자
  • 신종선(한국에너지기술연구원 온실가스연구단) | Jong-Seon Shin
  • 조성호(한국에너지기술연구원 온실가스연구단) | Sung-Ho Jo
  • 문종호(한국에너지기술연구원 온실가스연구단) | Jong-Ho Moon
  • 선도원(한국에너지기술연구원 온실가스연구단) | Dowon Shun Corresponding author